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Big Ideas:
Smart rounding helps us estimate quotients of larger whole number dividends and divisors. Proper estimation strategies build a foundation for using the standard algorithm to divide larger whole numbers.
As students start to use the standard algorithm for larger whole number dividends and divisors, they need to use smart rounding to make approximate estimates. This task requires students to make appropriate estimates of larger whole numbers. This builds a foundation for using the standard algorithm.
Special Materials:
grid paper (optional)